Ed Becker Edward Becker
Professor (Ph.D., Johns Hopkins University)
1037 Oldfather Hall
Phone: (402) 472-2404
E-mail: ebecker1[at]unl.edu
Office hours:  T TH 3:30 - 4:30 pm
Website: Edward Becker


Professor Becker teaches graduate courses in epistemology and the philosophy of language. He has recently published a book on the philosophy of W. V. Quine.

Representative publications include:

The Themes of Quine's Philosophy: Meaning, Reference, and Knowledge, (Cambridge University Press, 2012).

Aaron Bronfman Aaron Bronfman
Assistant Professor (Ph.D., University of Michigan)
1040 Oldfather Hall
Phone: (402) 472-4392
E-mail: bronfman[at]unl.edu
Office hours:  T TH 9:45 - 10:45 am
Website: Aaron Bronfman



Professor Bronfman earned his Ph.D. at the University of Michigan in 2009. Before that, he graduated from Harvard University with High Honors. His primary research interests are in ethics and epistemology.

Jean Cahan Jean Cahan
Senior Lecturer in Philosophy and Director of Judaic Studies (Ph.D., Johns Hopkins University)
505 Oldfather Hall
Phone: (402) 472-2346
E-mail: jcahan1[at]unl.edu
Office hours:  T 2:00 - 4:00 pm
Website: Jean Cahan



Dr. Cahan has published on Spinoza, modern Jewish philosophy and Marx. Her research interests include philosophy of religion and philosophy of history.

Representative publications include:

"Spinoza's Theory of Immanence Reconsidered," Journal of Jewish Thought and Philosophy, Vol. 5 (1995).

"The Lonely Woman of Faith under Late Capitalism: or, Jewish Feminism in Marxist Perspective," in: Hava Tirosh-Samuelson (ed.), Women and Gender in Jewish Philosophy (Indiana University Press, 2004).

Returning to Babel: Jewish Latin American Experiences, Representations and Identity (Brill 2011), co-edited volume with Amalia Ran.

"The Jewish Settler Movement and the Concept of Fundamentalism," in: Simon Wood and David Harrington Watt (eds.), Fundamentalism: Perspectives on a Contested History (University of South Carolina Press, forthcoming).

Albert CasulloAlbert Casullo 
Professor (Ph.D., Iowa)
1041 Oldfather Hall
Phone: (402) 472-2429
E-mail: acasullo[at]unl.edu
Office hours:  T TH 10:45 - 11:45 am
Website: Albert Casullo


Professor Casullo's publications focus on a priori knowledge, perception, and metaphysical issues connected with particulars and universals. He is the author of A Priori Justification and Essays on A Priori Knowledge and Justification, and the co-editor of The A Priori and Its Place in Philosophy, all published by Oxford University Press.

Representative publications include:

"Intuitions, Thought Experiments, and the A Priori," in Essays on A Priori Knowledge and Justification (New York: Oxford University Press, 2012).

"Counterfactuals and Modal Knowledge," in Essays on A Priori Knowledge and Justification (New York: Oxford University Press, 2012).

"Articulating the A Priori-A Posteriori Distinction," in Essays on A Priori Knowledge and Justification (New York: Oxford University Press, 2012).

"Four Challenges to the A Priori-A Posteriori Distinction," Synthese (forthcoming).

John Gibbons John Gibbons
Professor (Ph.D., Brown University)
1042 Oldfather Hall
Phone: (402) 472-3425
E-mail: jgibbons2[at]unl.edu
Office hours:  W 1:30 - 3:30 pm
Website: John Gibbons (With online papers)




Professor Gibbons does the philosophy of mind by doing action theory and epistemology. He has published on the individuation of content and the explanation of action. He currently is working on epistemic externalism and the nature of reasoning.

Representative publications include:

“You Gotta Do What You Gotta Do,” Noûs (forthcoming).

“Mental Causation Without Downward Causation,” Philosophical Review 115 (2006).

“Access Externalism,” Mind 115 (2006).

“Knowledge in Action,” Philosophy and Phenomenological Research LXII (2001).

Reina Hayaki Reina Hayaki
Associate Professor (Ph.D., Princeton University)
1039 Oldfather Hall
Phone: (402) 472-2031
E-mail: rhayaki[at]unl.edu
Office hours:  M 1:30 - 3:30 pm
Website: Reina Hayaki (With online papers)




Professor Hayaki received her Ph.D. from Princeton University in 2002. Her areas of specialization are philosophical logic, metaphysics and philosophy of language.

Representative publications include:

"Contingent Objects and the Barcan Formula," Erkenntnis 64 (2006), 87-95.

"The Transience of Possibility," European Journal of Analytic Philosophy 1 (2007), 25-36.

"Actualism and Higher-Order Worlds," Philosophical Studies 115 (2003), 149-178.

David Henderson David Henderson
Robert R. Chambers Distinguished Professor of Philosophy and the Moral Sciences, (Ph.D., Washington University)
1015 Oldfather Hall
Phone: (402) 472-8831
E-mail: dhenderson2[at]unl.edu
Office hours:  T TH 9:50 - 10:50 am
Website: David Henderson



Professor Henderson teaches and writes primarily in epistemology and the philosophy of the social sciences. Many of his interests in epistemology largely revolve around what it is to be justified in holding a belief. He has written on epistemological internalism and externalism, on various versions of reliabilism, on foundationalism and coherentism, on virtue epistemology, and on a priori justification. He is also interested in testimonial based knowledge, and in contextual accounts of knowledge. He is presently engaged with issues that include the epistemology of disagreement, social epistemology, and epistemic norms as social norms. These issues make for connections with his interests in the social sciences. His work in the philosophy of the social sciences has focused on the relations between interpretation and explanation, the place for attributions of rationality and irrationality, and the character of explanations in terms of norms.

Harry Ide Harry Ide
Associate Professor (Ph.D., Cornell University)
1004 Oldfather Hall
Phone: (402) 472-4389
E-mail: hide[at]unl.edu
Office hours:  T TH 11:00 am - 12:00 pm
Website: Harry Ide



Professor Ide teaches graduate courses in ancient, Hellenistic, and medieval philosophy. His publications concern issues in ancient philosophy and ethics.

Representative publications include:

"Aristotle, Metaphysics 6.2-3, and determinism," Ancient Philosophy 13 (1993): 341-354.

"Hobbes' Contractarian Account of Individual Responsibility for Group Actions," Journal of Value Inquiry 27 (1993): 455-464.

"Dunamis in Mataphysics 9," Apeiron 35 (1992): 1-26.

Jennifer McKitrick Jennifer McKitrick
Professor (Ph.D., Massachusetts Institute of Technology)
1008 Oldfather Hall
Phone: (402) 472-2073
E-mail: jmckitrick2[at]unl.edu
Office hours:  T TH 2:00 - 3:00 pm
Website: Jennifer McKitrick


Professor McKitrick received her Ph.D. in 1999 from the Massachusetts Institute of Technology. Her research concerns metaphysics and philosophy of science, particularly dispositions and causal relevance. She also works on feminist philosophy and is a member of the department of Women's and Gender Studies at UNL.

Representative publications include:

“The Bare Metaphysical Possibility of Bare Dispositions," Philosophy and Phenomenological Research, March 2003.

“A Case for Extrinsic Dispositions," Australasian Journal of Philosophy, June 2003.

“Reid's Foundation for the Primary Quality / Secondary Quality Distinction," Philosophical Quarterly, October 2002. Reprinted in The Philosophy of Thomas Reid: A Collection of Essays, John Haldane and Stephen Read, eds., Blackwell, 2003.

Colin McLear Colin McLear
Assistant Professor (Ph.D., Cornell University)
1003 Oldfather Hall
Phone:  (402) 472-4393
E-mail: mclear[at]unl.edu
Office hours:  T TH 11:00 am - 12:00 pm
Website: Colin McLear


Professor McLear's work focuses on two (often intersecting) areas of philosophy — the History of Modern Philosophy (especially Kant) and the Philosophy of Mind.

Representative publications include:

 “Two Kinds of Unity in the Critique of Pure Reason," forthcoming in Journal of the History of Philosophy.

"Kant on Perceptual Content," forthcoming in Mind.

Joseph Mendola Joseph Mendola
Professor (Ph.D., Michigan) and Department Chair
1009 Oldfather Hall
Phone: (402) 472-0528
E-mail: jmendola1[at]unl.edu
Office hours:  On Leave for Spring 2014 Semester
Website: Joseph Mendola (With online papers)



Professor Mendola teaches graduate courses in ethics, metaphysics, and philosophy of mind.

Representative publications include:

Goodness and Justice, (Cambridge University Press, 2006).

Anti-Externalism, (Oxford University Press, 2008).

Human Interests, (forthcoming from Oxford University Press).

Robert Schopp Robert Schopp
Robert J. Kutak Professor of Law (Ph.D., University of Arizona; J.D., University of Arizona)
255 Law College
Phone: (402) 472-1204
E-mail: rschopp1[at]unl.edu
Website: Robert Schopp




Professor Schopp practiced clinical psychology before turning to the study of law and philosophy in an attempt to understand some perplexing issues that he encountered during ten years of clinical practice. He joined the University of Nebraska College of Law in 1989 after completing the concurrent law/philosophy program at the University of Arizona. His primary areas of interest involve questions that lie at the intersection of law, psychology and philosophy. These issues tend to arise in criminal law, mental health law, jurisprudence and professional ethics.

Representative publications include:

"Pursuing Non-Adversarial Justice within an Adversarial Structure," Monash Univ.L.Rev. (forthcoming 2011).

Mental Health Courts: Competence, Responsibility, and Proportionality, Special Problem Solving Courts: Social Science and Legal Perspectives (forthcoming 2011).

So Sick He Deserves It: Desert, Dangerousness, and Character in the Context of Capital Sentencing, Action, Ethics, and Responsibility 259 (Robert F. Schopp, Joseph Keim Campbell, Michael O'Rourke, & Harry S. Silverstein, eds., 2010).

Mental Disorder and Criminal Law: Responsibility, Punishment, and Competence, (co-editor), 2008, Springer.

Justification Defenses and Just Convictions, (Cambridge, Cambridge Univ. Press, 1998).

Automatism, Insanity, and the Psychology of Criminal Responsibility, (Cambridge, Cambridge Univ. Press 1991).

Mark van Roojen Mark van Roojen
Professor (Ph.D., Princeton University)
1005 Oldfather Hall
Phone: (402) 472-2428
E-mail: mvr[at]unl.edu
Office hours:  M W 10:15 - 11:15 am
Website: Mark van Roojen



Professor van Roojen teaches graduate and undergraduate courses in normative ethics, metaethics, and political philosophy. His current research is in the same areas.

Representative publications include:

"Moral Rationalism and Rational Amoralism," Ethics 120 (April 2010): forthcoming.

"Knowing Enough To Disagree: A New Response to the Moral Twin Earth Argument," in Russ Shafer-Landau (ed.) Oxford Studies In Metaethics, Volume 1 (Oxford University Press, 2006): 161-193.

"Motivational Internalism: A Somewhat Less Idealized Account" The Philosophical Quarterly Vol. 50, No. 199 (April 2000): pp. 233-241.

"Expressivism and Irrationality" The Philosophical Review, Vol. 105, No. 3 (July, 1996): pp. 322-335.


Emeritus Faculty


Nelson Potter Nelson Potter
Professor Emeritus, Deceased (Ph.D., Johns Hopkins University)

Professor Potter taught graduate courses in ethics and Kant. Most of his publications are on Kant's moral philosophy. He also published on capital punishment and aesthetics. His past research focused on Kant's philosophy, especially his ethics, and on topics in aesthetics.

Representative publications include:

“Kant and the Moral Worth of Actions,” Southern Journal of Philosophy 34 (1996): 225-241.

“Kant on Obligation and Motivation in Law and Ethics,” Jahrbuch fuer Recht und Ethik, Band 2 (1994), pp. 95-111. (R)

“What is Wrong with Kant's Four Examples,” Journal of Philosophical Research 43 (1993): 213-229.

Charles Sayward Charles Sayward
Professor Emeritus (Ph.D., Cornell University)
E-mail: csayward1[at]unl.edu
Website: Charles Sayward

Charles Sayward, Professor Emeritus of Philosophy, University of Nebraska-Lincoln. Professor Sayward taught graduate and undergraduate courses in philosophy of logic, philosophy of language, and philosophy of mathematics. He published many articles in these areas and other areas. He has published two books with Philip Hugly: (1) Intensionality and Truth , (Kluwer, 1996); (2) Arithmetic and Ontology: A Non-realist Philosophy of Arithmetic, volume 90 of the Monographs-in- Debate subseries of Poznan Studies in Science and Humanities , edited by Pieranna Garavaso (Rodopi, 2006). Professor Sayward also co-authored Philosophical Logic (Continuum, 2011) with George Engelbretsen. Finally, Professor Sayward authored Dialogues Concerning Natural Numbers (Peter Lang, 2009).